Which of the following statements is true? a both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction. b neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. c nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. d chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not.

option D Chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not.

Justification:

1) The rate of chemical reactions are affected by: concentration of the reactants, state of the reactants, temperature, and presence of catalizers. So the first part of the statement is true.

2) Nuclear decay rates are constant. The decay depends on the nature of the element but not the conditions. That is why dating fossils with radiactive isotopes is possible. So, the second part of the statement is true.

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.